<!DOCTYPE >
<html>
	<head>
		<title>Nested table</title>
	</head>
	<body>
		<table border="2">
			<tr>
				<th></th>
				<th>Morning</th>
				<th>Afternoon</th>
			</tr>
			<tr>
				<th>Saturday</th>
				<td>Cycling</td>
				<td>Fishing</td>
			</tr>
			<tr>
				<th>Sunday</th>
				<td>Rowing</td>
				<td>
					<table>
						<tr>
							<th>Group 1</th>
							<th>Group 2</th>
						</tr>
						<tr>
							<td>Water ski-ing</td>
							<td>Wake boarding</td>
						</tr>
					</table>
				</td>
			</tr>
		</table>
	</body>
</html>